Capsule repairs can be far more demanding skill-wise and test-equipment-wise than most repairs to the purely electronic part of a microphone. Some manufacturers draw a line between those two points, and make capsule repairs only at the factory (i.e. overseas in this case). Others won't repair a capsule at all, and expect the user to pay for a complete replacement in case of damage.
The only reliable answer in your situation would be the one from Audio-Technica. Assuming you're in the United States or Canada, you could write to them at repair@atus.com, or call them at (686) 330-2600.
I hope the news is favorable to you. Please let us know, OK?
--best regards